000 FZNT25 KNHC 171521 OFFN04 NAVTEX Marine Forecast NWS National Hurricane Center Miami, FL 1121 AM EDT Thu Aug 17 2023 ...Please refer to Coastal Waters Forecasts (CWF) available through NOAA Weather Radio and other means for detailed Coastal Waters Forecasts... Southeast Gulf of Mexico .SYNOPSIS...A surface ridge over the Gulf waters will support mostly gentle to moderate winds and slight seas across the basin through Sat night. Looking ahead, a surface trough is expected to move across the Gulf from east to west Sun through early next week. The trough could form into a broad area of low pressure in the central or W Gulf by the beginning of next week. .THIS AFTERNOON...SW winds 5 to 10 kt. Seas 2 ft or less. Scattered showers and isolated tstms. .TONIGHT...SW to W winds 5 to 10 kt, shifting to S after midnight. Seas 2 ft or less. Scattered showers and isolated tstms. .FRI...S to SW winds 5 to 10 kt, shifting to NW to N in the afternoon. Seas 2 ft or less. Scattered showers and isolated tstms. .FRI NIGHT...NW to N winds 5 to 10 kt, shifting to NE to E after midnight. Seas 2 ft or less. Numerous showers and scattered tstms. .SAT...NE winds 5 to 10 kt. Seas 2 ft or less. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 ft or less. .SUN...E winds 10 to 15 kt. Seas 3 ft. .SUN NIGHT...SE winds 15 to 20 kt. Seas 3 to 5 ft. .MON...E to SE winds 15 to 20 kt. Seas 3 to 5 ft. .MON NIGHT...E winds 15 to 20 kt. Seas 3 to 5 ft. Within 200 nm east of the coast of Florida .SYNOPSIS...Fresh tradewinds will develop south of 25N today then diminish on Sat. A cold front will approach the NW waters then stall. Fresh to locally strong SW winds ahead of the cold front can be expected today and tonight to the east of northern Florida. Gentle to moderate winds will prevail elsewhere. .THIS AFTERNOON...SE to S winds 5 to 10 kt S of 27N, and S to SW 15 to 20 kt N of 27N. Seas 3 to 4 ft. Scattered showers and isolated tstms. .TONIGHT...E to SE winds 10 to 15 kt S of 27N, and S 10 to 15 kt N of 27N. Seas 3 to 4 ft. Scattered showers and isolated tstms. .FRI...SE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated tstms. .FRI NIGHT...E to SE winds 10 to 15 kt. Seas 3 to 4 ft. Scattered showers and isolated tstms. .SAT...E to SE winds 10 to 15 kt. Seas 3 to 5 ft. .SAT NIGHT...SE winds 10 to 15 kt. Seas 3 to 5 ft. .SUN...E to SE winds 10 to 15 kt. Seas 4 to 6 ft. .SUN NIGHT...E winds 15 to 20 kt. Seas 4 to 6 ft. .MON...E winds 15 to 20 kt. Seas 4 to 6 ft. .MON NIGHT...NE to E winds 15 to 20 kt. Seas 4 to 6 ft.